Finding the Fourth Proportional to 150,109.50, 207,151.92 and 82,127.28

Step by Step Solution

1. Step 1: Write the proportion equation
   150,109.50 : 207,151.92 = 82,127.28 : x
2. Step 2: Convert to fraction form
   150,109.50/207,151.92 = 82,127.28/x
3. Step 3: Cross multiply
   150,109.50x = 207,151.92 × 82,127.28
4. Step 4: Simplify right side
   150,109.50x = 17,012,823,736.38
5. Step 5: Solve for x
   x = 17,012,823,736.38/150,109.50
6. Step 6: Final answer
   x = 113,336.09